On 5/24/07, Paul Mundt <[EMAIL PROTECTED]> wrote:
So far the only example anyone has provided outside of periodic timers or hardware reset has been dumping the stack when something gets stuck. Softlockup does this already today, using a timer.
Many watchdogs can be hooked up to a non-maskable interrupt (NMI) that cannot be disabled or preempted. You get a stack dump even for drastic bugs: ISR lock up, timer misconfiguration, level-sensitive interrupt line stuck asserted, and so forth. Getting that information by other means can be painful and/or expensive. The Blackfin chip in the original message appears to support watchdog NMI. -- Daniel - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
